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File: /www/wwwroot/outofmemory.cn/tmp/plugin_ss_superseo_model_superseo.php, Line: 445, preg_replace_callback(/(?)( *** )/ , object , <===><===><===>给你一段我写的client代码<===><===>C/C++ code<===><===>/*客户端*/ #include<stdio.h>#include<stdlib.h>#include<string.h>#include<sys/socket.h>#include<sys/types.h>#include<netdb.h>#include<netinet/in.h>#include<unistd.h>#include<sys/time.h>#include <errno.h>#define SERVERPORT 5556 int main(int argc,char *argv[]) { int sockfd,connectfd=0,recvfd,sendfd struct sockaddr_in serv_addrstruct hostent *hostFILE *fpchar ch[1024]int byte_send=0//int a=MSG_DONTWAIT//int opt=MSG_DONTWAITfd_set rfdsstruct timeval tvint retval, maxfdif(argc!=3) { printf("format: %s IP file_name\n",argv[0])return 0} if((host=(gethostbyname(argv[1])))==NULL) { printf("error in gethostby name. \n")return 0} if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1) { printf("error in socket create.\n")return 0} printf("创建socket成功,sockfd=%d\n",sockfd)//printf("运行至此1\n")serv_addr.sin_family=AF_INETserv_addr.sin_port =htons(SERVERPORT)serv_addr.sin_addr=*((struct in_addr*)host->h_addr)bzero(&(serv_addr.sin_zero),sizeof(serv_addr.sin_zero))//printf("运行至此2\n")while(1) { if((connectfd=connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(struct sockaddr )))==-1) { printf("error in connect.\n")printf("连接失败:connectfd=%d\n",connectfd)sleep(5)continue} printf("连接成功:connectfd=%d\n",connectfd)break} //printf("运行至此3\n")fp=fopen(*(argv+2),"rb")memset(ch,0,sizeof(ch))while(1) { memset(ch,0,sizeof(ch))sendfd=fread(ch,sizeof(char),1024,fp)if(sendfd<0) breaksleep(1)//printf("sendfd=%d\n",sendfd)byte_send=send(sockfd,ch,sendfd,0)//printf("byte_send=%d,%s\n",byte_send,strerror(errno))//memset(&ch,0,sizeof(ch))//printf("发送内容:%s\n",ch)sleep(3)while(1) { //void FD_ZERO (fd_set *fdset)// 初始化文件描述集合 //void FD_SET (int fd, fd_set *fdset)// 将描述符加入到集合中 //void FD_CLR (int fd, fd_set *fdset)// 将描述符中集合中删除 //int FD_ISSET (int fd, fd_set *fdset)// 检查描述符集合中指定的文件描述符是否可读写 /*把可读文件描述符的集合清空*/ FD_ZERO(&rfds)/*把标准输入的文件描述符加入到集合中*/ FD_SET(0, &rfds)maxfd = 0/*把当前连接的文件描述符加入到集合中*/ FD_SET(sockfd, &rfds)/*找出文件描述符集合中最大的文件描述符*/ if(maxfd <sockfd) maxfd = sockfd/*设置超时时间*/ tv.tv_sec = 5tv.tv_usec = 0/*等待聊天*/ retval = select(maxfd+1, &rfds, NULL, NULL, &tv)if(retval == -1) { printf("select出错，客户端程序退出\n")break} else if(retval == 0) { //printf("客户端没有任何输入信息，并且服务器也没有信息到来，waiting...\n")//continueprintf("客户端输出信息完毕，等待下一次输出\n")break} else { /*服务器发来了消息*/ if(FD_ISSET(sockfd,&rfds))// 检查描述符集合中指定的文件描述符是否可读写 { /******接收消息*******/ memset(ch,0,sizeof(ch))recvfd=recv(sockfd,ch,sizeof(ch),0)if(recvfd==-1) { //printf("运行至此7\n")printf("error in recv.\n")continue} //printf("recvfd=%d\n",recvfd)printf("%s\n",ch)} } } } printf("传送结束！\n")fclose(fp)close(connectfd)return 0}<===>对所有用户设置自动注销功能:<===><===>首先，以root用户登录系统，输入 vi /etc/profile 命令，编辑profile文件。<===><===>查找TMOUT，若没有，则可以在文件最后添加如下语句：<===><===>TMOUT=300<===><===>export TOMOUT<===><===>如果查找到了，直接设置时间。<===><===>300表示自动注销的时间为300秒。<===><===>编辑好文件后，保存，退出，重新登录，设置生效。<===><===> , 1)
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